Système de montage permettant aux conduites métalliques, d'épaisseurs réduites, installées en galerie ou en puits, de supporter des pressions extérieures,申请号FRD891842-传众专利搜索

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发明名称	Système de montage permettant aux conduites métalliques, d'épaisseurs réduites, installées en galerie ou en puits, de supporter des pressions extérieures
摘要
申请公布号	FR891842(A)	申请公布日期	1944.03.21
申请号	FRD891842	申请日期	1942.12.10
申请人		发明人	FERRAND GEORGES
分类号	E02B9/06	主分类号	E02B9/06
代理机构		代理人
主权项
地址

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